The 2001 Ford Mustang has 12 valves.
The 2001 Nissan Maxima has 24 valves.
The 2001 Ford Escape has 16 valves.
The 2001 Hyundai Accent has 12 valves.
The 2001 Chevrolet Impala has 12 valves.
The 2001 Audi TT has 20 valves.
The 2001 Toyota Avalon has 24 valves.
The 2001 GMC Yukon has 16 valves.
The 2001 Lincoln Navigator has 32 valves.
The 2001 Ford Focus has 16 valves.
The 2001 Porsche 911 has 24 valves.
The 2001 Honda Civic has 16 valves.